CN201289817Y - Looped network cabinet loop load switch - Google Patents
Looped network cabinet loop load switch Download PDFInfo
- Publication number
- CN201289817Y CN201289817Y CNU2009200355588U CN200920035558U CN201289817Y CN 201289817 Y CN201289817 Y CN 201289817Y CN U2009200355588 U CNU2009200355588 U CN U2009200355588U CN 200920035558 U CN200920035558 U CN 200920035558U CN 201289817 Y CN201289817 Y CN 201289817Y
- Authority
- CN
- China
- Prior art keywords
- arc
- moving contact
- control device
- load switch
- arc control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910001080 W alloy Inorganic materials 0.000 claims abstract description 5
- 230000003068 static effect Effects 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 6
- 230000000171 quenching effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Abstract
A load switch for a loop-grid cabinet loop relates to an electrical switch and is arranged in a seal casing. The load switch comprises an arc-extinguishing chamber and a moving contact arranged inside the arc-extinguishing chamber; a fixed contact matched with the moving contact is arranged at the upper part of the moving contact; the arc-extinguishing chamber has a sleeve structure and comprises an outer sleeve and an inner sleeve internally sleeved in the outer sleeve; the inner sleeve can move vertically along the outer sleeve; the arc-extinguishing chamber is filled with SF6 insulating gas; a guide groove is formed in the arc-extinguishing chamber for improving the pressure of the insulating gas; and both the moving contact and the fixed contact adopt Cu-W alloy. The utility model has the advantages that the arc extinguishment is fast and the performance of contacts is stable.
Description
Technical field
The utility model relates to a kind of electric switch, relates in particular to a kind of ring main unit loop on-load switch that is applied to.
Background technology
For improving power supply reliability, make the user obtain power supply from both direction, often each high tension loop is arranged in the ring main unit and powers, safety and normal operation in order to guarantee supply line prevent the generation of accident, need on each loop spacer assembly be set, present spacer assembly often adopts disconnecting link, but when switch moment separating brake, often produce electric arc, if untimely arc extinguishing, cause security incident easily, but disconnecting link does not have arc-control device, only can the very little loop current of disjunction, and the disconnecting link volume is big, it is big to take up room, and damage easily, easy-maintaining does not use very uneconomical.
The utility model content
The utility model is at above-mentioned defective, and it is a kind of with arc-control device, arc extinguishing is rapid, stability in use is good ring main unit loop on-load switch that purpose is to provide.
The technical solution of the utility model is: the utility model is arranged in the seal casinghousing, comprise arc control device and be arranged on the interior moving contact of arc control device, moving contact top is provided with the fixed contact that cooperates with moving contact, arc control device are sleeve structure, comprise outer tube and in be enclosed within inner sleeve in the outer tube, inner sleeve can move up and down along outer tube, is filled with the SF6 insulating gas in the arc control device, be provided with the guiding gutter that improves insulating gas pressure in the arc control device, moving contact and fixed contact adopt the Cu-W alloy.
Major loop on-load switch of the present utility model has arc quenching effect, establish the SF6 gas of high insulating property in the arc control device, the SF6 gas that has high-insulativity by compression carries out arc extinguishing to the electric arc that dynamic/static contact moment separating brake produces, for SF6 gas can be used for a long time, arc control device are arranged in the seal casinghousing, to improve insulation, arc quenching effect, also improve economy simultaneously; In order to improve arc quenching effect, improve the surge of insulating gas, in arc control device, be provided with guiding gutter, make insulating gas to impact electric arc in the mode of high pressure the less relatively passage in cross section, to reach the effect of rapid arc extinguishing; The utility model adopts the Cu-W alloy with good combination property in order to improve the useful life of dynamic and static contact simultaneously, and electric arc is less to its influence, can keep the stable of contact in a long time.
Description of drawings
Structural representation when Fig. 1 closes a floodgate for the utility model on-load switch
1 is that fixed contact, 2 is that moving contact, 3 is that guiding gutter, 4 is that outer tube, 5 is inner sleeve among the figure.
Fig. 2 is the on-load switch dynamic/static contact separating brake structural representation of moment
Structural representation when Fig. 3 is the switch separating brake
Embodiment
The utility model is arranged in the seal casinghousing, comprise arc control device and be arranged on the interior moving contact 2 of arc control device, moving contact 2 tops are provided with the fixed contact 1 that cooperates with moving contact 2, arc control device are sleeve structure, comprise outer tube 4 and in be enclosed within inner sleeve 5 in the outer tube 4, inner sleeve 5 can move up and down along outer tube 4, is filled with the SF6 insulating gas in the arc control device, be provided with the guiding gutter 3 that improves insulating gas pressure in the arc control device, moving contact 2 and fixed contact 1 adopt the Cu-W alloy.
Below in conjunction with accompanying drawing the utility model is further described:
When switch closes a floodgate, dynamic/static contact contact, loop conducting; The moment that dynamic/static contact separates, produce electric arc between the two, outer tube 4 in the arc control device maintains static, moving contact 2 is along with inner sleeve 5 moves downward, compression is in the SF6 insulating gas in the arc control device, and the SF6 insulating gas upwards sprays by guiding gutter 3, produces insulating surfaces between dynamic/static contact, electric arc is disappeared, thereby reach the effect of protection on-load switch; Dynamic/static contact of the present utility model is preferentially selected the structure of plum petal type for use simultaneously, makes electric field even, good to the characteristic of electric current more.
Claims (1)
1, ring main unit loop on-load switch, be arranged in the seal casinghousing, comprise arc control device and be arranged on the interior moving contact of arc control device, it is characterized in that moving contact top is provided with the fixed contact that cooperates with moving contact, arc control device are sleeve structure, comprise outer tube and in be enclosed within inner sleeve in the outer tube, inner sleeve can move up and down along outer tube, is filled with the SF6 insulating gas in the arc control device, be provided with the guiding gutter that improves insulating gas pressure in the arc control device, moving contact and fixed contact adopt the Cu-W alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200355588U CN201289817Y (en) | 2009-03-13 | 2009-03-13 | Looped network cabinet loop load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200355588U CN201289817Y (en) | 2009-03-13 | 2009-03-13 | Looped network cabinet loop load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289817Y true CN201289817Y (en) | 2009-08-12 |
Family
ID=40981501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200355588U Expired - Lifetime CN201289817Y (en) | 2009-03-13 | 2009-03-13 | Looped network cabinet loop load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289817Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930868A (en) * | 2010-04-26 | 2010-12-29 | 南京业基电气设备有限公司 | Auxiliary arc extinction device of SF6 gas load switch |
| CN102354637A (en) * | 2011-07-28 | 2012-02-15 | 苏州鼎能电力设备有限公司 | Active arc extinguish chamber used in circuit breaker |
-
2009
- 2009-03-13 CN CNU2009200355588U patent/CN201289817Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930868A (en) * | 2010-04-26 | 2010-12-29 | 南京业基电气设备有限公司 | Auxiliary arc extinction device of SF6 gas load switch |
| CN102354637A (en) * | 2011-07-28 | 2012-02-15 | 苏州鼎能电力设备有限公司 | Active arc extinguish chamber used in circuit breaker |
| CN102354637B (en) * | 2011-07-28 | 2014-05-14 | 苏州鼎能电力设备有限公司 | Active arc extinguish chamber used in circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Gang Inventor before: Wu Gang |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100122 Address after: No. 58, Hung Road, Yangzhou Development Zone, Jiangsu, China: 225009 Co-patentee after: Yangzhou Power Supply Company of Jiangsu Electric Power Company Patentee after: Yangzhou Beichen Electric Equipment Co Address before: No. 58, Hung Road, Yangzhou Development Zone, Jiangsu, China: 225009 Patentee before: Yangzhou Beichen Electric Equipment Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: YANGZHOU POWER SUPPLY CO., JIANGSU PROV ELECTRIC P Free format text: FORMER OWNER: YANGZHOU POWER SUPPLY CO., JIANGSU PROV ELECTRIC POWER CO., LTD. Effective date: 20121109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 225009 YANGZHOU, JIANGSU PROVINCE TO: 225000 YANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121109 Address after: 225000 No. 58 Hung Road, Jiangsu, Yangzhou Patentee after: Yangzhou Beichen Electric Equipment Co., Ltd. Patentee after: Yangzhou Power Supply Company of Jiangsu Electric Power Company Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 225009 No. 58 Hung Road, Yangzhou Development Zone, Jiangsu, China Patentee before: Yangzhou Beichen Electric Equipment Co., Ltd. Patentee before: Yangzhou Power Supply Company of Jiangsu Electric Power Company |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090812 |